Vulnerabilities > CVE-2021-25830 - Unspecified vulnerability in Onlyoffice Document Server

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

PARTIAL

Integrity impact

PARTIAL

Availability impact

PARTIAL

network

low complexity

onlyoffice

NVD

Published: 2021-03-01

Updated: 2021-03-15

Summary

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v5.6.4.13. An attacker must request the conversion of the crafted file from DOCT into DOCX format. Using the chain of two other bugs related to improper string handling, an attacker can achieve remote code execution on DocumentServer.

Vulnerable Configurations

Part	Description	Count
Application	Onlyoffice Onlyoffice Document Server 4.2.1 Onlyoffice Document Server 4.2.3 Onlyoffice Document Server 4.2.4 Onlyoffice Document Server 4.2.5 Onlyoffice Document Server 4.2.7 Onlyoffice Document Server 4.2.8 Onlyoffice Document Server 4.2.9 Onlyoffice Document Server 4.2.10 Onlyoffice Document Server 4.2.11 Onlyoffice Document Server 4.3.0 Onlyoffice Document Server 4.3.1 Onlyoffice Document Server 4.3.2 Onlyoffice Document Server 4.3.3 Onlyoffice Document Server 4.3.4 Onlyoffice Document Server 4.3.5 Onlyoffice Document Server 4.3.6 Onlyoffice Document Server 4.4.1 Onlyoffice Document Server 4.4.2 Onlyoffice Document Server 4.4.3 Onlyoffice Document Server 5.0.3 Onlyoffice Document Server 5.0.4 Onlyoffice Document Server 5.0.5 Onlyoffice Document Server 5.0.6 Onlyoffice Document Server 5.0.7 Onlyoffice Document Server 5.1.0 Onlyoffice Document Server 5.1.1 Onlyoffice Document Server 5.1.2 Onlyoffice Document Server 5.1.3 Onlyoffice Document Server 5.1.4 Onlyoffice Document Server 5.1.5 Onlyoffice Document Server 5.2.0 Onlyoffice Document Server 5.2.2 Onlyoffice Document Server 5.2.3 Onlyoffice Document Server 5.2.4 Onlyoffice Document Server 5.2.6 Onlyoffice Document Server 5.2.7 Onlyoffice Document Server 5.2.8 Onlyoffice Document Server 5.3.0 Onlyoffice Document Server 5.3.1 Onlyoffice Document Server 5.3.2 Onlyoffice Document Server 5.3.4 Onlyoffice Document Server 5.4.0-2 Onlyoffice Document Server 5.4.1 Onlyoffice Document Server 5.4.2 Onlyoffice Document Server 5.5.0 Onlyoffice Document Server 5.5.1 Onlyoffice Document Server 5.5.3 Onlyoffice Document Server 5.6.0 Onlyoffice Document Server 5.6.1 Onlyoffice Document Server 5.6.2 Onlyoffice Document Server 5.6.3 Onlyoffice Document Server 5.6.4	52

Summary

Vulnerable Configurations

References